What is the yarn of silk in Song Dynasty?

Yarn yarn is a light and transparent silk fabric. In the Song Dynasty, not only soft plain yarn was woven, but also fancy yarn was developed.

There are horizontal stripes on the surface of roller, and there are two kinds of roller in Song Dynasty. There are many names of Luo Luo in Song Dynasty, including Fang Mu Luo, Luo Yun, Luo Jie, Luo Yue, Luo Qing, Luo Liang, Guazi Luo, Toutuo Luo, Peacock Luo, Yuan Manchun Luo, Bao Hua Luo and Peony Luo. "Twisted Peony Camellia Luo" and "Peony Yellow Tail Luo" were unearthed in the tomb of the Southern Song Dynasty in Fuzhou, with a flower head diameter of 12 cm, which are realistic and unrestrained, and are very beautiful representative works.